MicroRNA Expression Analysis and Biological Pathways in Chemoresistant Non- Small Cell Lung Cancer

Abstract

: Platinum-based chemotherapy (CT) is a standard treatment for lung cancer, however a variety of chemoresistance mechanisms can impair its efficacy. MicroRNAs (miRNAs) represent potential biomarkers for the prediction of treatment efficacy in non-small cell lung cancer (NSCLC). We herein used a bioinformatics approach to identify differentially expressed (DE) miRNAs associated with response to platinum-based CT in NSCLC. We identified 6 miRNAs targeting signaling molecules participating in biological pathways involved in cancer and drug resistance. In summary, we developed a 6-miRNA signature that potentially predicts the response to cisplatin in NSCLC and warrants further validation in clinical samples.